Medically reviewed by Susan Russell, MD Coughing up white mucus can mean you have congestion with a respiratory infection ...

The main identified cause of chronic bronchitis is smoking. Your bronchial tube or airway is lined with glands that produce mucus. This mucus is a medium for trapping infectious agents ...

How allergic bronchitis progresses from common allergens, recognize symptoms requiring medical care, and learn treatment ...

Chronic bronchitis What is it ... stained phlegm that is thick and dry in consistency. This phlegm may be yellow, green, or brown in color. How to treat it: Some cases of pneumonia can go away ...

Bronchitis is an inflammation to the ... treating sinusitis with antibiotics is what makes the sinusitis become chronic.” The ...

Your nasal passages need moisture, which aids in the flow of mucus and helps you clear ... These could be signs of chronic bronchitis or another condition. To make a diagnosis, your doctor may ...